Administrative: NOAA-16, 18, 19, & MetOp-A/2, AVHRR, Monthly Visible Calibration Update, 8 November 2011 - Issued: November 8, 2011 1330 UTC

Topic: Visible calibration update for month of November 2011.

Date/Time Issued: November 8, 2011 1330 UTC

Product(s) or Data Impacted: All products from channels 1, 2, and 3a.

Date/Time of Initial Impact: November 8, 2011 1314 UTC

Date/Time of Expected End: Until next update

Length of Outage: TBD

Details/Specifics of Change:
On 8 November 2011 at approximately 13:14 UTC, the following update of the calibration coefficients was implemented in the level 1B processing for NOAA-16/18/19 and MetOp-A/2 for the month of November. These coefficients are intended to be optimal on 26 November, in the middle of the two scheduled updates.

NOAA-16 AVHRR
Ch_1_lo = 0.05905*count - 2.277, count<498.96
Ch_1_hi = 0.1723*count - 58.57, count>498.96
Ch_2_lo = 0.06538*count - 2.470, count<500.16
Ch_2_hi = 0.1926*count - 66.11, count>500.16

NOAA-18 AVHRR
Ch_1_lo = 0.05537*count - 2.183, count<501.54
Ch_1_hi = 0.1651*count - 56.77, count>501.54
Ch_2_lo = 0.06372*count - 2.510, count<500.40
Ch_2_hi = 0.1912*count - 66.62, count>500.40
NOAA-19 AVHRR
Ch_1_lo = 0.05134*count - 1.996, count<496.43
Ch_1_hi = 0.1515*count - 52.06, count>496.43
Ch_2_lo = 0.05788*count - 2.245, count<500.37
Ch_2_hi = 0.1724*count - 59.52, count>500.37

MetOp-A/2
Ch_1_lo = 0.05478*count - 2.215, count<501.01
Ch_1_hi = 0.1619*count - 55.87, count>501.01
Ch_2_lo = 0.06547*count - 2.602, count<500.42
Ch_2_hi = 0.1945*count - 67.15, count>500.42
Ch_3_lo = 0.03274*count - 1.345, count<501.94
Ch_3_hi = 0.2274*count - 99.05, count>501.94

For NL/NN/NP, the first orbits processed were:
NSS.HRPT.NL.D11312.S1409.E1423.B5737575.WI
NSS.GHRR.NL.D11312.S1221.E1408.B5737475.WI

NSS.HRPT.NN.D11312.S1357.E1411.B3332929.GC
NSS.GHRR.NN.D11312.S1218.E1356.B3332829.GC

NSS.HRPT.NP.D11312.S1257.E1312.B1417474.GC
NSS.GHRR.NP.D11312.S1109.E1256.B1417374.GC
NSS.LHRR.NP.D11312.S1240.E1252.B1417474.GC

For MetOp-A/2, the first orbit processed was the one running after orbit:
NCS.FRAC.M2.D11312.S1149.E1240.B2622323.MM

Contact Person(s) Name/Email/Phone Number for Questions:
Dejiang.Han Dejiang.Han@noaa.gov 301-817-4119 operations support
Xiangqian Wu Xiangqian.Wu@noaa.gov 301-763-8136 x 138 instrument scientist

Web site(s) that contain other relevant information (where applicable):
http://www.osdpd.noaa.gov/PSB/PPP/PPP.html - History of level 1B notices
http://www.ssd.noaa.gov/PS/SATS/messages.html - All user notices
http://www.oso.noaa.gov/poes/index.htm - SOCC polar satellite status

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880 and/or other contacts as necessary